Deparsing (see O and B::Deparse) is a useful way to look at issues of precedence:

Win8 Strawberry 5.8.9.5 (32)  Mon 07/05/2021  1:12:59
C:\@Work\Perl\monks
>perl -Mstrict -Mwarnings -l -MO=Deparse,-p
my ($x, $y, $z) = qw(eks wye zee);

print $x && $y &&  $z;
print $x && $y and $z;  # $z is useless
^Z
Useless use of private variable in void context at - line 4.
BEGIN { $/ = "\n"; $\ = "\n"; }
use warnings;
use strict 'refs';
(my($x, $y, $z) = ('eks', 'wye', 'zee'));
print((($x && $y) && $z));
(print(($x && $y)) and $z);
- syntax OK
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